ufofeed, https://www.ufofeed.com/74854/interoffice-memorandum-and-photos-given-to-members-that-worked-on-the-1975-viking-1-launch/ Interoffice memorandum and photos given to members that worked on the 1975 Viking 1 launch #Astrobiology #Astrophysics #Cosmology #PlanetaryScience #Space #SpaceExploration